diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 00000000..bf92e559
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1,9 @@
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+mkdocs/themes/mkdocs/js/** linguist-vendored
+mkdocs/themes/mkdocs/js/base.js linguist-vendored=false
+mkdocs/themes/mkdocs/css/** linguist-vendored
+mkdocs/themes/mkdocs/css/base.css linguist-vendored=false
+mkdocs/themes/readthedocs/js/** linguist-vendored
+mkdocs/themes/readthedocs/js/theme.js linguist-vendored=false
+mkdocs/themes/readthedocs/css/** linguist-vendored
+mkdocs/themes/readthedocs/css/theme_extra.css linguist-vendored=false